Prof. Naoaki Yamanaka was interviewed in FM Kawasaki related to Smart City and Smart Network. He talk that smart network is now closeup soler panel or smart meter that are just hardware or box. They are not enough for future energy network. One of the most important is the control, application and business that uses power network. In USA, smart network is the No. 2 ARPANET(The Internet). If say yes, we try to find Cisco router or Google or Amazon application business in Smart network.